laser diodes

The beam shape of the metasuface based external cavity laser can be fully controlled to project a complex hologram, such as the Harvard shield. (Image: Christina Spägele/Harvard SEAS)

The might of metasurfaces

Harvard researchers have developed a metasurface that can effectively tune the properties of laser light without the need of additional optical components

Far field pattern of UV-C laser projected onto a fluorescent screen (Image: Asahi Kasei Corp. and Nagoya University)

Scientists develop laser diode that emits 'world's shortest lasing wavelength'

Scientists have designed a laser diode that emits what they say is the shortest-wavelength ultraviolet light achieved to-date, with potential applications in disinfection, dermatology, and the analysis of gas and DNA

Artery Targeted Photothrombosis to Better Model Human Stroke and Forelimb Impairment

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Researchers have developed a new method to better model human stroke which uses artery-targeted photothrombosis. This shows a clear improvement on traditional methods by creating a larger penumbra for a longer amount of time while maintaining the practical results of the traditional model.

Laser Diodes in Optofluidics and Microfluidics

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Microchips are extremely useful when studying sample sizes less than a milliliter in volume. Researchers from Massachusetts Institute of Technology and Georgia Institute of Technology both used microchips in conjunction with infrared diode lasers to conduct experiments on small-scale environments. The absorption spectrum of water dictated the wavelength choices made by the researchers. On one hand, negligible heating of the water (via absorption) was desired, so the wavelength was chosen away from an absorption peak of water.

Trumpf acquires laser diode division of Philips

Trumpf is acquiring 100 per cent of Photonics GmbH from Philips, headquartered in Ulm, Germany. The move, which represents Trumpf's largest acquisition since buying JFY in China in 2013, opens up a new market segment for Trumpf to complement its existing high-power diode laser business

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